My earlier problem has been solved, Thanks all for the support, now i made a new page(update.php) which is used to update information, update criteria is based on the date, so for that i first fetch the information based on the date and then i am trying to update it, but my update query does'nt seem to work.

let my explain you what my script is doing below first i am fetching the data which is based on the dateusing textbox, and then i take column name "TIME" and "INITIALS" into the text box which i would like to update it ,but my update query does'nt seem to work.

Any time you call mysql_query - you should check this has worked. Checking the return value for FALSE indicates that some error has occurred. If you don't you may never see that the update is failing with an error.